61-year-old David Green was killed at Orchard Court on New Orchard Street in Swansea City Centre on Easter Sunday, 9 April.
South Wales Police say that officers are not looking for anyone else in connection with the death.
Detective Chief Inspector Matt Powell from the South Wales Police’s Major Crime Investigations Team, said: “I would like to thank members of the public who have already come forward to support the investigation.
“We continue to appeal for witnesses who may have been with David, seen David, or have any information as to David’s whereabouts from Wednesday 5 April to Sunday 9 April 2023, including any arrangements to meet with David that he either failed to attend or cancelled.”
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